Favorite 6mm BR Loads

[Frankr]

Re: Favorite 6mm BR Loads,20 Merged Posts)

Well the 6br shoots every thing well but i will tell you what works in a 14 twist gun.
If you want consistant accuracy,If you want to be able to shoot with a PPC then this is the load. lapua case cci 450 primer 30.5 grs RL10x with a 66gr fowler bullet .010 off the lands . You could win a benchrest match with this load.The second best load comes in with H335 being the second most consistantly accurate.the H335 powder charge varys betwen rifles but what i rember is like 33.5grs behind any good 65-66gr pill will work speeds in the 3,450fps to 3,550fps.

 

[cmillard]

Re: Favorite 6mm BR Loads,20 Merged Posts)

stiller predator single shot right bolt
krieger 27.25" .236 bore 5R 8" .271nk twist chambered by Jim Carstensen (JLC precision--outstanding smith!!!!)

lapua brass turned to .013
wolf small rifle mag primers
30.0 varget
107 sierra
avg. 2818 fps.
this load is my fire form load as well as my regular load. just load and shoot. it doesnt get any better than that! this rifle plain shoots. now i just need to get a hold of some more uniform bullets to test with. the sierras have been all over the map for me after sorting. thinking about trying some BIBs or lapua 105s. will stick with varget or i will give imr 4007ssc a try. shoot wolf primers exclusively.

 

[Gunner75]

Re: Favorite 6mm BR Loads,20 Merged Posts)

New to the 6BR but have some numbers on it with what I have ran so far. I started out with Varget and switched to RL15. Have some more work to do but the RL15 seems to be running well. 2500ft elevation. All loads shot at 100yrds, shot well, not distance accuracy tested yet.

Rifle: Nesika, Shilen 8 twist, std 6BR reamer.
CCI 450 primers
Lapua Brass



VARGET AND 107SMK NAKED
2489 fps avg 29gr Varget 2.785
2476 fps avg 29gr Varget 2.795
2544 fps avg 29.5gr Varget 2.785
2529 fps avg 29.5gr Varget 2.795
2577 fps avg 30gr Varget 2.785
2571 fps avg 30gr Varget 2.795


RL15 AND 107SMK MOLY
2590 fps avg 29gr RL15 2.787
2641 fps avg 29.5gr RL15 2.787
2683 fps avg 30gr RL15 2.787
2729 fps avg 30.5gr RL15 2.787
2779 fps avg 31gr RL15 2.787

 

[Steve Blair]

Re: Favorite 6mm BR Loads,20 Merged Posts)

My latest 6BR rifle, 398 rounds fired.

Stiller Viper SS RBRP, Drop Port
30" Bartlein 5R 8" twist, HV contour, .269 neck, .104 freebore
Shehane ST-1000
Jewell BR 2 oz.
Weaver T36

Lapua "blue box" brass, 38.9 g H2O, neck turned to .267 loaded
Sierra 107 MK Moly, 2.380" OAL, -.012"
CCI 450
31.1 IMR 8208 XBR
~2930 fps, 9-13 ES, 4.5-5.5 SD

This load has produced several five-shot, 100 yard groups between .1" and .125". When the wind cooperates, 10-shot 300 yard groups under 1". Pressure seems reasonable. I just fired the eighth load in these 50 pieces, annealed twice. Primer pockets are still tight.

 

[queen_stick]

Favorite 6mm BR Loads,20 Merged Posts)

As I'm posting this, I noticed that sleepygator's post above has pretty much the same components and results, but he used 8208 and I'm using RL15... I'm gonna have to try some 8208

Found a load for my 6BR yesterday... The smallest groups I've ever shot with this rifle. (.25" tall, 1.0" wide @ 300yds)
(this is a long range rig, so I only use heavy/high BC bullets

Lapua Brass, 5X fired, annealed (unturned. Only trimmed and chamfered)
107 SMK (naked) seated .010 off the lands
CCI 450
30.8gr of RL15 (it was 95 degrees yesterday)... As the temp comes down, I believe this charge will have to come up to stay in the higher node.

8-twist Broughton @ 28", .272 neck, Hart action, Shehane stock

Disclaimer: This is a HOT load!!! It is my max charge. Start at 29gr and work your way up.

edit: make sure you sort the 107's... I found significant differences in "ogive-to-base" length.

 

[Webster]

Favorite 6mm BR Loads,20 Merged Posts)

I have a REM 700 with a Krieger 6BR 1:14 barrel, 0.065" freebore, 26". I spent all last summer trying to work up loads for GH. I tried 68 Bergers, 70 Si HPBT, 70 Si BK and a couple others. Powders tried V133, V135, 8208, Varget. The 68 Bergers were the best but I couldn't get consistant round groups under .5". This Spring I tried 65 gr. Watson bullets (Bart's now). The groups were immediately much smaller round and no fliers if I did my part. My first try after three shots I only saw one small hole in the target. The groups are always smaller than anything else I tried. It's a BR bullet. Low expansion. 29 gr. with H322 looks real good.

Some of my data. One shot at each powder charge to see what was possible. All 68 Berger, Fed 205 primer, 2.209" COAL. Oehler 33 Chronograph, 5' screen spacing. No signs of pressure. The highest weight was about 1 grain under published max. I usually don't see signs of pressure at max published loads.

Powder wt, fps

Varget
32.0 3076
33.0 3265
34.0 3364

8208
29.0 lost data
30.0 3126
31.0 3205

H322
27.0 3134
28.0 3250
29.0 3315

VV133
28.0 2979
29.0 3075
30.0 3172

Watson 65 gr. 29.0 gr. H322 3259 fps.

 

[areaone]

You all are missing the boat. H4198 27.5 gr, cci450, 3250 fps low es with 62 gr Berger MEF. small groups and works great with 55 noslers and 58 V Max. 70 gr Sierra same load, slower but very accurate. works in everyone of my 6 br, whether Bartlein or Kreiger. Work up to this in your rifle ofcourse.

 

[hogpatrol]

I have two 1-14s, a Lilja and an Atkinson. I've had excellent results with VV135, 31.7 in the Lilja and 31.9 in the Atkinson. Pushing a 68gr Precision Ballistics FB, velocity is in 3400-3500 range (using a Magnetospeed Chrono). Seating is +.005, Lapua brass and Fed 205Ms. .001-.0015 neck tension. The usual disclaimers apply, i.e. start lower & work up.

 

[cmillard]

atkinson? aren't they now h-s precision?

 

[duceman]

hi everyone, glad to be a part of the forum. looks like i'm the only one running a 10 twist barrel here. any one else run one with 90 gr bullets, got some components in the mail.
ive been running 68 berger fb, with good results, but some wind bucking at 500, lee

 

[tloehrke]

Does anyone have a good load recipe for berger 115 vlds?

 

[ShootDots]

Does anyone have a good load recipe for berger 115 vlds?

I am just beginning preliminary work on them. I have a 1-7.5twist and I am shooting H4350... But no load yet>>>
I am just getting started..

 

[queen_stick]

Does anyone have a good load recipe for berger 115 vlds?

I tested some 115`s out of my 8twist 6br. My notes show that that they were doing half moa or a little better at 100yds, but I can't find any more data. Pretty sure that I was using 8208 and Tulla srm`s during that test. However this is based on memory alone, as I cannot find my notes on load data. Long story short, it can work, but it will be at a less-than-ideal speed, and might suck a lot at mid and long range. (600 and 1k). I haven't tried it at long range, so I don't know...

 

[500Stroker]

Anyone have any load data for 6mm Dasher 1:8 with Nosler 105 HPBT ?

 

[cocopuff]

why so few 8 twist barrels I wonder..

 

[dixieppc]

why so few 8 twist barrels I wonder..

New build so this is just preliminary. 28" 1:8 Bartlein chambered for a plain vanilla 6BR with .268 neck and .120 freebore. Turned Lapua brass to .0115 for .002 clearance. Working rifle up to shoot Berger 105g Hybrids, Varget and 450 primers. So far all that I have been able to get done is the chronograph work searching for the load giving the lowest standard deviation. The lowest standard deviation was a five shot 3.8 at 30.2 grains of Varget and the bullets kissing the lands. MV avg was 2863. I will next start testing 5 shot groups at 200 yards around the 30.2 grain of Varget load. I'm pretty sure that the sweet spot is going to fall pretty close around the 30.2 grain load. After finding the best load I will start playing with seating depth. From what I have been reading, the hybrids like to be jumped, even up to .030

Once I get the whole thing worked up I will post the results here. BTW, that low SD was attributed more to cartridge work up than to load and sweet spot. I think one of the most important things to low standard deviation and small group size is consistent neck tension. You either have to feel it or gauge it, but you got to have it.

Regards,

 

[snert]

1 in 8 Hart, 28 inches, no turn neck, Lapua brass, Win SR primer, 32 grains IMR 8208XBR, 70 grain Blitz King...shooting bug holes and thumps groundhogs with no muss, no fuss.

 

[KenOath]

Does anyone have any more 105 Hybrid loads?

 

[ShootDots]

Here you go Rustij.. Before I turned my 6mmBR into a 6 Dasher,it LOVED 30.4grs. of VV N150 with the 105 Hybrids seated 15K OFF the lands.. It also LOVED 30.3grs of Varget... Both with CCI BR4's.. During the "cooler" months down here in Texas, the N150 was incredible!

 

[KenOath]

Thanks ShootDots, I have access to a powder that's very close to N150 here in Australia AR2209, will look into it. Cheers